Smoking pipe



y 1943- L. R. SIBERT 2,318,639

SMOKING PIPE Filed Aug. 26, 1941 Attorney Patented May 11, 1943 UNITED stares m o FicE 2,318,639 SMOKING PIPE Lewis B. Sibert, Kansas City, Mo. Application August 26, 1941, Serial No. 488,378

3 Claims.

My invention relates to improvements in smoking pipes, and the primary object of the invention is to provide a smoking pipe having appropriate facilities for cooling the smoke, trapping the noxious material carrying moisture, and facilitating removal of the resultant accumulations.

Other important objects and advantages of my invention will be apparent from a reading of the following description taken in connection with the appended drawing, wherein for purposes of illustration I have shown a preferred embodiment of my invention.

In the drawing: I

Figure 1 is a general vertical longitudinal sec tional view taken through the assembled smoking pipe.

Figure 2 is a group perspective View of the effective components of the smoking pipe except the bowl and stem with which they are associated.

Figure 3 is an enlarged end elevational view of the smoke tube.

This application, being a continuation in part of my co-pending application Serial No. 369,878, filed December 12, 1940, for Smoking pipe, provides several features for improved action and convenience over the subject matter of said application, which will be apparent fromthe following description and claims.

Referring in detail to the drawing, the numeral 5 generally designates the tobacco burning bowl which may be of any suitable size and shape to afford an interior tobacco receiving chamber 6 having a relatively large smoke opening I on a level with and at one side of the bottom of the chamber. Projecting from the side of and preferably forming a part of the bowl-5, is the stem which is generally designated 8 and which is of unusual height and width and is tapered away from the bowl slightly on its top as indicated by the numeral 9 and more angularly as indicated by the numeral II) on its bottom to define the interiorly screw-threaded extremity H.

The top wall of th stem 8 meets the adjacent wall I2 of the bowl 5 at or above its middle height, the wall I2 depending below the upper wall of the stem to define the upper part of the smoke opening 1.

. Threaded into the extremity II is the cooling element I3 which comprises a knurled annular head I4 which is adapted to abut the extremity II, the threads I5 which thread in th said extremity being formed adjacent the head. Projecting forwardly from the threads I5 and bein of smaller diameter is a smooth cylindrical portion It which is substantially uniform in diameter as far as the point H where it is curvedly reduced in diameter to terminate in the smaller diameter uniform cylindrical portion I8 which is open at its forward end as indicated by the numeral 1 9; The tubular portion I6 is provided in its bottom adja cent the threads I5 with a relatively large open ing20 extending substantially more than half the length of the portion I6 as indicated in Figure -1 of the drawing. The reduced tubular portion I8 has a snug friction fit in the side wall of the vertical metal cup or cooling chamber 2| which has an annular reinforcement 22 around the opening accepting the part I8. The upper part and the side wall of the cooling chamber 2| havea snug fit in the correspondingly shaped opening 23 formed in the stem.8 and including the top wall of the stem 8 .and the -wall I2 of the bowl, so that the top of the cooling chamber 2| is closed by the upprwall of the stem and the rounded bottom 24 of the cooling chamber 2i] depends somewhat below the top of the smoke opening or passage 1 and in substantially vertically spaced relation to a clean-out plug 25 which is'threaded into a relatively large Opening 26 in the bottom wall I!) of the stem directly under the chamber 2 I. The top wall 9 of the stem 8 is shaped to. con form to the contour of the upper part of the cooling element I3' as shown in Figure 1 ofthe drawing. As seen in Figure 1' the wall of the element I3 is substantially spaced above the lower wall I8 of the stem 8.

The bit which is generally designated 21 may be of any suitable type provided with a smoke bore 28 and a reduced plug portion 29 adapted to have a plug fit in the interior of the element I3 as illustrated in Figure 1 of the drawing. The plug portion 29 is interiorly threaded concentric with the bore 28, as indicated by the numeral 30 to threadably accept the'threads M on the rearward end of the tube 32 which has at its forward end a head 33 slidably received in the portion I8 of the element I3 as shown in Figure l of the drawing. The head 33- is solid across the lower half thereof as indicated by the numeral 34 and has the upper part thereof perforated to provide" a semi-circular opening 35. As indicated the forward terminal of the tube 32 extends beyond the head 33 and well into the chamber 2 I. The cleanout plug 25 is provided chiefly to 'give access to" the chamber 2I and to permit its removal: on

occasion, so that the accumulations of noxious material laden moisture may be drained from the pipe simply by separating the bit 21 from the stem 8 and standing the pipe up on the rearward terminal of the stem, which is broad enough to provide a sustaining base to stand the pipe on a draining surface.

It will be observed from the foregoing that; the chief cause of juicy, bad tasting pipes, is positively eliminated, namely, the entrance of any moisture from the mouth of the smoker through the bore of the bit 27 and into the bowl of the pipe. All such moisture upon passing through the bore 28 of the bit is confined by the tubular element 32 to empty into the closed moisture trap or chamber 2| and thereby prevented from ever reaching any other operative part of the pipe. It

will also be observed that the smoke from the burning tobacco is forced to travel through the passage 1, across the relatively cool bottom of the chamber 2|, further along the enlarged interior of the stem 8 and then upwardly through the opening into the relatively large interior .of the cooling element l3, at the same time passing in contact with the relatively cool cooling tube 1.3, and to pass thence from the chamber 3 through the semi-circular opening 35:, and into the relatively cool interior of the trap 21 and thence into the forward end of "the tube 32, before the smoke enters the bore 28 of the bit and passes through the mouth of the smoker. Because of the large openings and-wide passages provided by the various fittings described, there is noimpediment to-a free draft on the pipe, despite the tortuous passages provided for the entrapment of moisture and impurities and heatin the smoke, and the elimination of flowing contact between it and the saliva which may come through the bore and the bit.

Although I haveshown anddescribed herein 5 a preferred embodiment of my invention, it is to be definitely understood that: I do not wish to limit the application of the invention thereto except as may be required by the scope of the subjoined claims.

Having described the invention, whatis claimed as new is:

ond tube being formed with a relatively large downwardly facing opening communicating with the interior of the stem.

2. A smoking pipe comprising a bowl in which the tobacco is burned, said bowl having a depressed smoke passage, a relatively large diameter stem projecting from one side of said bowl,

, the interior of said stem providing substantial space between its top wall and its bottom wall with a portion of said bottom wall substantially on a level with said smoke passage, a saliva cup within said stem with its top closed by the top wall of the stem and with its bottom substantially spaced above the bottom wall of the stem, said spacedly surrounding the first tube, said second tube having a forward portion inserted through an opening formed in the side wall of said saliva cup and said first tube having an enlarged head inserted in said forward portion and formed with 1. A smoking pipe comprising a bowlin which i the tobacco is burned, said bowl'fhaving a depressed smoke passage, a relativelyla'rge diameter stem projecting from one side of said bowl, the interior of said stem providing substantial space between its top wall and its. bottom wall with a portion of said bottom wall substantially on a level with said smoke passage,.a saliva cup I within said stem with its top closed by the top wall of the stem and with its bottom substantially spaced above the bottom wall of the stem, said stem tapering to a bit accommodating terminal, a bit inserted in said terminal, a tubeprojecti-ng from the forward end oisaid bitand-communicating with the bore of the bit,,saioltube projecting through the interior ofsaid-stem-and into said saliva cup, and meansproviding smoke transit from the interior of the stem'into the upper part ofsaid saliva cup and into saidtube, said means comprising a second andlarger diameter tube spacedly surrounding the. first tube; said second tube having a forward portion inserted tlno-ugh an opening formed inthe side-wall of said saliva cup and said first tube having antenlarged head inserted in said forward portion and formed with a smoke duct establishing; limited communication between the :interior ofsaid saliva cup and the interior of said-secondftube, said seca smoke duct establishing limited communication between the interior of said saliva cup and the interior of said second tube, said second tube being formed with a relatively large downwardly facing opening communicating: with the interior of the stem, the lower wall of said second tube and said large opening being substantially spaced above the bottom wall of said stem.

3. A smoking pipe comprising a bowl in which the tobacco is burned, a hollow stem projecting from one side of saidbowl, the space between-the bottom wall and the top wall of said. stem-being relatively great, a smoke duct leading from said bowl into the interior of said hollow stem adjacent the bottom wall of the stem, a combined saliva-trap and cooler consisting of a metal cup supported within the interior of the stem with its top closed by the top wall of the stem and with its bottom spaced from the bottom wall-of the stem and exposed in heat exchange relation to thesmoke and air in the interior of said stem, a-bit connected on saidstem, saidbit "comprising a-relatively small metal tube extending spacedly through the interior of-the-stem and enterin'gsaid cup, andconduit means establishing; communica' tion between said cup and theinterior offthe stem, said conduit means comprising a relatively large diameter metal tube spacedly. surrounding said'relatively small-metal tube 'on' the bit, said large diameter metal tube having alsubstantial portion-thereof: exposed in heat: exchange'relation to the-smoke-and air within theiinterior. of said stem, saidtlarge diameter metal tube further beingspaced upwardly from the bottom wall of said stem and formedinits bottom with a; relatively large opening communicating :with: the interior of the stem, said conduit means further comprising, a restricted passage eiie'cting com munication between said cup and the space b'etween. saidssmall metal tube and said large metal tube; x

LEWIS RP SIBERTQ 

